TOTOLINK A3002R 4.0.0-B20230531.1404 formDhcpv6s addrPoolEnd buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in TOTOLINK A3002R 4.0.0-B20230531.1404. This issue affects the function formDhcpv6s. Such manipulation of the argument addrPoolEnd leads to buffer overflow. This vulnerability is uniquely identified as CVE-2025-45866. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in TOTOLINK A3002R 4.0.0-B20230531.1404 and classified as critical. Affected by this issue is the function formDhcpv6s. The manipulation of the argument addrPoolEnd with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. CVE summarizes:

TOTOLINK A3002R v4.0.0-B20230531.1404 was discovered to contain a buffer overflow via the addrPoolEnd parameter in the formDhcpv6s interface.

This vulnerability is handled as CVE-2025-45866 since 04/22/2025. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 05/26/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-14504). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/22/2025 🔍
05/13/2025 +21 days 🔍
05/13/2025 +0 days 🔍
05/26/2025 +13 days 🔍

Sourcesinfo

Vendor: totolink.net

Status: Not defined

CVE: CVE-2025-45866 (🔍)
GCVE (CVE): GCVE-0-2025-45866
GCVE (VulDB): GCVE-100-308642
EUVD: 🔍

Entryinfo

Created: 05/13/2025 17:21
Updated: 05/26/2025 21:53
Changes: 05/13/2025 17:21 (53), 05/26/2025 21:53 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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